FprEN 12697-13

• Abstract:

  This document describes a test method for measuring the temperature of asphalt mixtures after mixing and during storage, transportation and laying. This document includes the contact temperature-measuring device and the non-contact temperature-measuring device (infrared-thermometer). In cases of dispute, the refence method shall be using the contact temperature measuring device.

• Status: Not Published
• Publication Date: 03-Jan-2027
• ICS: 93.080.20 - Road construction materials
• Technical Committee: CEN/TC 227 - Road materials
• Drafting Committee: CEN/TC 227/WG 1 - Bituminous mixtures
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 08-Jul-2026
• Due Date: 01-Dec-2025
• Completion Date: 08-Jul-2026
• Ref Project: oSIST prEN 12697-13:2025 - Bituminous mixtures - Test methods - Part 13: Temperature measurement

• Referred By: CEN ISO/TS 5387:2024 - Nanotechnologies - Lung burden mass measurement of nanomaterials for inhalation toxicity tests (ISO/TS 5387:2023)
• Effective Date: 28-Jan-2026
• Referred By: CEN ISO/TS 23359:2025 - Nanotechnologies - Chemical characterization of graphene-related two-dimensional materials from powders and liquid dispersions (ISO/TS 23359:2025)
• Effective Date: 28-Jan-2026
• Referred By: CEN ISO/TS 24672:2024 - Nanotechnologies - Guidance on the measurement of nanoparticle number concentration (ISO/TS 24672:2023)
• Effective Date: 28-Jan-2026
• Revises: EN 12697-13:2017 - Bituminous mixtures - Test methods - Part 13: Temperature measurement
• Effective Date: 21-Feb-2024

Overview

FprEN 12697-13: Bituminous Mixtures – Test Methods – Part 13: Temperature Measurement is a European draft standard developed by CEN/TC 227. This document specifies standardized procedures for the accurate measurement of the temperature of asphalt mixtures after mixing, as well as during storage, transportation, and laying processes. It covers both contact temperature-measuring devices and non-contact infrared thermometers. The standard ensures that temperature data is reliable and repeatable, which is essential for the quality control and performance of bituminous mixtures in road construction.

Key Topics

• Temperature Measurement Methods
  • Describes how to assess the temperature of asphalt mixtures using two primary approaches:
    • Contact temperature measuring devices (probes): Inserted into the mixture at specified depths and locations.
    • Infrared thermometers: Non-contact devices measuring surface temperature with adjustable emissivity.
• Measurement Procedures
  • Covers procedures for measuring asphalt temperature:
    • In a lorry (truck)
    • After laying, before or during rolling
    • In a material heap
    • In a paver hopper (for infrared thermometers)
• Device Requirements
  • Contact Devices:
    • Must measure to the nearest 1°C with a maximum error of 2°C.
    • Probes must have a minimum length of 200 mm and quick response time.
  • Infrared Thermometers:
    • Require adjustment for material emissivity (typically 0.90–0.98 for asphalt).
    • Must measure with an appropriate angle (50°–90°) and distance to ensure accurate readings.
• Procedural Consistency
  • Multiple measurements (at least four) must be averaged for each scenario to ensure representativeness.
  • Safety provisions are emphasized, especially when measuring in or near moving equipment and hot material.
• Reference Method
  • In case of discrepancies between results, the reference is always the contact temperature measuring device.

Applications

• Road Construction Quality Control
  • Ensures asphalt mixtures are handled and installed within optimal temperature ranges, minimizing defects and maximizing durability.
• Process Monitoring
  • Critical throughout storage, transport, laying, and compaction stages to maintain correct material properties.
• Dispute Resolution
  • Provides a standardized method for temperature measurement, facilitating the resolution of discrepancies and contract compliance.
• Laboratory and Site Testing
  • Useful both for laboratory sample validation and onsite inspections, supporting consistent testing across European projects.
• Safety in Operations
  • Emphasizes safe procedures, especially when working near hot materials and moving vehicles or machinery.

Related Standards

• EN 12697 Series: Comprehensive standards for testing bituminous mixtures, including sampling, characterization, and performance methods.
• EN 12697-1 to EN 12697-35: Cover different aspects of asphalt mixture testing.
• ISO and IEC Terminology Databases: Support consistent use of definitions and terms relevant to temperature measurement and materials testing.
• EN 12697-13:2017: The previous version, which this draft will supersede, with improved accuracy requirements and updated test reporting protocols.

Summary

Adhering to FprEN 12697-13 is crucial for construction professionals, quality engineers, and laboratory technicians involved with asphalt mixtures in road pavement. This standard provides a robust framework for accurate temperature measurement, incorporating both traditional and advanced instrumentation, practical application methods, and detailed reporting requirements. Its application helps improve road performance, supports contract and regulatory compliance, and enhances occupational safety in the field of road construction and bituminous mixture testing.

SLOVENSKI STANDARD
01-marec-2025
Bitumenske zmesi - Preskusne metode - 13. del: Merjenje temperature
Bituminous mixtures - Test methods - Part 13: Temperature measurement
Asphalt - Prüfverfahren - Teil 13: Temperaturmessung
Mélanges Bitumineux - Méthodes ďessai - Partie 13: Mesure de la température
Ta slovenski standard je istoveten z: prEN 12697-13
ICS:
93.080.20 Materiali za gradnjo cest Road construction materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 12697-13
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2025
ICS 93.080.20 Will supersede EN 12697-13:2017
English Version
Bituminous mixtures - Test methods - Part 13:
Temperature measurement
Mélanges Bitumineux - Méthodes dessai - Partie 13: Asphalt - Prüfverfahren - Teil 13: Temperaturmessung
Mesure de la température
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 227.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12697-13:2025 E
worldwide for CEN national Members.

prEN 12697-13:2024(E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 4
4.1 Contact Temperature Measuring Thermometer . 4
4.2 Infrared-thermometer . 4
5 Apparatus . 4
5.1 Contact temperature measuring device . 4
5.2 Infrared-thermometer . 5
6 Procedure . 5
6.1 Contact Measuring Device. 5
6.1.1 Conditioning of instrument . 5
6.1.2 Measurement of temperature in a lorry . 5
6.1.3 Measurement material temperature after it has been laid and before or during rolling . 5
6.1.4 Measurements of temperature in a heap . 5
6.2 Infrared-thermometer . 6
6.2.1 General. 6
6.2.2 Comparison measurement . 6
6.2.3 Temperature measurement . 6
7 Test Report . 7
8 Precision . 7

prEN 12697-13:2024 (E)
European foreword
This document (prEN 12697-13:2024) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12697-13:2017.
prEN 12697-13:2024 includes the following significant technical changes with respect to
EN 12697-13:2017:
— [ 5.1], (3.1.1 and 3.1.2 in EN 12697-13:2017), the wording: “The temperature measuring device shall
have the capacity to measure the temperature with an accuracy of ± 2 °C”, amended to read: “The
contact temperature measuring device shall be capable to measure the temperature to the nearest 1
°C with a maximum permissible error of 2 °C.”;
— [Clause 7], (Clause 5 in EN 12697-13:2017), information to be reported amended.
A list of all parts in the EN 12697 series, published under general title Bituminous mixtures - Test methods
can be found on the CEN website: https://www.cencenelec.eu/.
prEN 12697-13:2024(E)
1 Scope
This document describes a test method for measuring the temperature of asphalt mixtures after mixing
and during storage, transportation and laying. This document includes the contact temperature-
measuring device and the non-contact temperature-measuring device (infrared-thermometer). In cases
of dispute, the refence method shall be using the contact temperature measuring device.
2 Normative references
There are no
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